e-Key v3 - Restionaceae
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Interactive keys to the identification of seed plants of southern Africa using keys based on plant morphology.

MONOCOTYLEDON - COMMELINIDAE - RESTIONALES - Restionaceae

Compiled by C. Archer

Description :

  • Perennial, rush- or sedge-like herbs, with a tufted or rhizomatous rootstock densely covered with scaly sheaths, dioecious, rarely monoecious or sometimes florets bisexual
  • Culms photosynthetic, erect or rarely reclining, simple or branched, terete, quadrate or compressed, solid or fistular with a leaf sheath at each node
  • Leaf sheaths usually convolute, free at margins, rarely produced at apex into a blade-like extension, caducous or persistent; ligule usually 0
  • Inflorescence a spike, raceme or panicle, frequently different in the sexes
  • Spikelets 1-many, with 1-many florets, subtended by a sheath-like spathe at base
  • Florets unisexual, rarely bisexual, mainly hidden within bracts
  • Perianth glumaceous, usually of 6 segments in 2 whorls, rarely less or 0; outer lateral segments frequently conduplicate and ± keeled; inner segments usually rounded on outer side
  • Male florets : stamens 3, opposite inner perianth segments; filaments very slender; anthers 1(2)-thecous; ovary rudimentary or 0
  • Female florets : staminodes 0-3; ovary superior, 1-3-locular, sometimes 1 or 2 by abortion, with a solitary pendulous ovule in each locule; styles 1-3, free or partly united
  • Fruit a capsule or nutlet

Nomenclature:

  • Restionaceae
    • Masters: 59 (1897)
    • Pillans: 207 (1928)
    • Pillans: 339 (l942)
    • Pillans: 245 (1944)
    • Pillans: 101 (1952)
    • Linder: 11 (1984)
    • Linder: 387 (1985)
    • Linder: 209 (1991)

Distribution & Notes:

  • Global : Genera ± 28, species ± 400, only southern hemisphere, except for 1 species in Vietnam, mainly southern Africa (Western Cape), several also in Australia, Tasmania and New Zealand, few in tropical Africa, Madagascar, Indochina and Chile
  • Southern Africa : Genera 19, species ± 320, almost exclusively in Western Cape

References:

  • LINDER, H.P. 1984. A phylogenetic classification of the genera of the African Restionaceae . Bothalia 15
  • LINDER, H.P. 1985. Conspectus of the African species of Restionaceae . Bothalia 15
  • LINDER, H.P. 1991. A review of the southern African Restionaceae . Contributions from the Bolus Herbarium 13
  • MASTERS, M.T. 1897. Restiaceae . Flora capensis 7
  • PILLANS, N.S. 1928. The African genera and species of Restionaceae . Transactions of the Royal Society of South Africa 16
  • PILLANS, N.S. 1942. New species of South African Restionaceae . Transactions of the Royal Society of South Africa 29
  • PILLANS, N.S. 1944. New and hitherto imperfectly known species of African Restionaceae . Transactions of the Royal Society of South Africa 30
  • PILLANS, N.S. 1952. New and hitherto imperfectly known species of South African Restionaceae . Journal of South African Botany 18